GB330762A - Improvements in or relating to means for controlling electric motors - Google Patents

Improvements in or relating to means for controlling electric motors

Info

Publication number
GB330762A
GB330762A GB17392/29A GB1739229A GB330762A GB 330762 A GB330762 A GB 330762A GB 17392/29 A GB17392/29 A GB 17392/29A GB 1739229 A GB1739229 A GB 1739229A GB 330762 A GB330762 A GB 330762A
Authority
GB
United Kingdom
Prior art keywords
long
pawls
coils
barrel
motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB17392/29A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Clarke Chapman Group Ltd
Original Assignee
Clarke Chapman and Co Ltd
Clarke Chapman Group Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Clarke Chapman and Co Ltd, Clarke Chapman Group Ltd filed Critical Clarke Chapman and Co Ltd
Priority to GB17392/29A priority Critical patent/GB330762A/en
Publication of GB330762A publication Critical patent/GB330762A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/03—Arrangements for regulating or controlling the speed or torque of electric DC motors for controlling the direction of rotation of DC motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Protection Of Generators And Motors (AREA)

Abstract

330,762. Clarke, Chapman, & Co., Ltd., and Read, A. June 6, 1929. Controllers, locking. -A disc 6 with a stepped periphery and attached to the shaft of a barrel controller is obstructed from movement to the reverse position as long as one of the pawls 1, 2 is pulled down by the energization of the coils 5 which are connected across the motor armature. Thus as long as the motor continues to run in one direction and develops a back E.M.F., its connection cannot be reversed. If the controller controls contactors for dealing with the motor current, but reverses the armature currents on the barrel, then the part 7 of the drum can be sufficiently long so that the contactor circuits can be broken but the reverser circuits cannot be broken until the coils 5 are de-energized. A modified construction is disclosed in which a double-ended pawl influenced by a single coil is used instead of the pair of pawls 1, 2<1>.
GB17392/29A 1929-06-06 1929-06-06 Improvements in or relating to means for controlling electric motors Expired GB330762A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB17392/29A GB330762A (en) 1929-06-06 1929-06-06 Improvements in or relating to means for controlling electric motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB17392/29A GB330762A (en) 1929-06-06 1929-06-06 Improvements in or relating to means for controlling electric motors

Publications (1)

Publication Number Publication Date
GB330762A true GB330762A (en) 1930-06-19

Family

ID=10094387

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17392/29A Expired GB330762A (en) 1929-06-06 1929-06-06 Improvements in or relating to means for controlling electric motors

Country Status (1)

Country Link
GB (1) GB330762A (en)

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